Zero Phase Error Tracking Control for Square Sampled-Data Systems

[+] Author and Article Information
H. Ali Pak, G. Q. Li

Department of Mechanical Engineering, University of Southern California, Los Angeles, CA 90089-1453

J. Dyn. Sys., Meas., Control 113(3), 506-509 (Sep 01, 1991) (4 pages) doi:10.1115/1.2896439 History: Received April 17, 1990; Revised September 05, 1990; Online March 17, 2008


A multivariable version of the zero phase error tracking control algorithm is presented for sampled-data systems. The feedforward controller is based on the minimal-order inverse of a square system’s transfer function matrix. It is shown that, apart from phase cancellation, complete input/output decoupling will result from the use of the controller. Using a simulation study, the control algorithm’s performance is demonstrated for a multivariable positioning system.

Copyright © 1991 by The American Society of Mechanical Engineers
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